Tags: Protein.
Three prime repair exonuclease 2 is an enzyme that in humans is encoded by the TREX2 gene.This gene encodes a protein with 3′ exonuclease activity. Enzymes with this activity are involved in DNA replication repair and recombination. Similarity to an E. coli protein suggests that this enzyme may be a subunit of DNA polymerase III which does not have intrinsic exonuclease activity.